The electric hair dryer is the most important accessory in a woman's life. In many ways, thanks to this device, a woman is always attractive and desirable for a man. With a hair dryer, you can not only dry your hair, but also make a beautiful styling that emphasizes the natural beauty of a woman. The hair dryer is also the first item in the hands of a makeup artist in a beauty salon. It is almost impossible to imagine the life of a modern woman without a hair dryer. But, like any other device, it is prone to breakdowns. How to determine the malfunction, how to disassemble the hair dryer and repair it, if possible, will be discussed in this article.
General arrangement of hair dryers
Due to the wide distribution, regardless of the manufacturer, most hair dryers have a similar design. The main elements are the heating element and the electric fan. The heating element is a conventional coil, which is made of alloys with high electrical resistance. Due to this, the coil can be heated to high temperatures and not burn out. ATelectric hair dryers use nichrome wire as a heating element. Even with very high resistance, the coil will certainly burn out if it is not cooled.
Cooling in hair dryers is air, that is, the heating element is cooled by a strong air flow. The flow strength is calculated in such a way as to prevent the spiral from burning out. The main element in the cooling unit is the electric motor. Power can be different and varies from the class of hair dryer and from its manufacturer. The higher the class of the hair dryer, the greater its power. High-power engines are put on a Rowenta hair dryer. How to disassemble it, we will explain below. Motors for hair dryers are produced in a low-voltage version. The supply voltage, as a rule, does not exceed 12 volts. This is necessary to ensure the compactness of hair dryers and their safe operation. To lower the voltage to the required level, a step-down coil is included in the circuit, which is built into the heating element. In addition, the hair dryer has a power button, which can also be a power regulator.
Repair Tools
Regardless of the manufacturer or class of hair dryer, the home master will need the following tools and supplies:
- screwdriver;
- pliers;
- soldering iron;
- tweezers;
- glue;
- solder paste or flux;
- tin;
- pieces of wire of various sections;
- multimeter.
Dismantling the hair dryer
UsuallyThe housings of the hair dryers are made of plastic, which are fastened with self-tapping screws. You need to unscrew them with a curly screwdriver. Next, you need to push the halves of the body, disengage the latches. The latches are very fragile and it is important to be careful not to break them. Especially if you want to take apart a Rowenta hair dryer. How to do it right? The main thing is to unscrew all the screws. It happens that in hair dryers, depending on their design, hidden screws are used. They may be under manufacturer's stickers or logos. If you do not unscrew them, then with further disassembly you have every chance to break the latches.
There is one more feature if you do not know how to disassemble the hair dryer brush - such devices consist of several parts and have a rotating head. When disassembling such a device, you need to carefully remember in what order and how the parts are attached to each other. This is very important and necessary for the subsequent correct assembly of the hair dryer.
Troubleshooting
We learned how to take apart a hair dryer. Now you need to find and fix the problem so that it can be used for a long time. If the hair dryer does not want to turn on at all, then the first step is to check the integrity of the electrical cord and plug. The correctness of the plug will help determine a visual inspection. If during inspection traces of burning or melting are visible, then such a plug must be replaced. Often the plug and cord are one piece and the entire cord must be replaced.
For protectiondryer against overheating, a thermal switch and a thermal fuse are used. The first is contact plates, which, when a certain temperature is reached, open and break the circuit. The thermal fuse also protects the hair dryer from overheating. If it overheats, the fuse blows and opens the circuit. Also, the number of malfunctions may include an idle engine. Often this can happen with a Philips hair dryer. How to disassemble it is written above.
Hair dryer repair
If a cord is found to be defective, it must be replaced. The integrity of the cord can be checked with a multimeter. Turn on your multimeter to measure resistance, measure the resistance of the wires in turn. A good core will show zero, and a burnt one will show infinite resistance.
Thermal fuse is one piece. It is short-circuited, when the critical temperature is reached, it simply burns out. This can also be checked with a multimeter, if such a defect is present, then the fuse must be replaced. In this case, you will need a soldering iron and a new fuse.
The fault may also lie in the thermal switch. The bimetallic plate is the basis of this device; due to high temperature, it can lose its properties and stop working. Then such a switch must also be replaced, since it will not be possible to restore it.
Another reason for repair may be a burned-out heating element. This most often happens with the Scarlet hair dryer (you can learn how to disassemble it and repair it from the article). burnoutcoils can occur for two reasons: failure of the protection and a long service life. In this case, you need to replace the spiral, after restoring the protection. A non-working engine must be replaced.
Prevention
To avoid unnecessary expenses for repairs, it is advisable to carry out preventive maintenance of the device. To do this, you also need to disassemble the hair dryer. How to do prevention? First of all, it is a visual inspection. Inspect the hair dryer that you use for external damage: the integrity of the cord, plug, possible melting on the case. If there is such damage, then the hair dryer needs to be repaired or replaced. Important! Do not use a damaged hair dryer as it may cause injury or fire.
From time to time you need to clean the hair dryer. In the process of operation, the hair dryer is clogged with dust and cut hair. To clean it, the back cover with a protective grid is removed. Through the opened hole you can get to the heating element. Use a soft brush to gently brush away dirt and hair from the mesh and clean the coil. So you learned how to disassemble a hair dryer in order to repair it. To summarize.
Conclusion
The electric hair dryer is a fairly simple household appliance. But, like all appliances powered by a 220 volt network, it needs constant care and prevention. You learned how to disassemble a hair dryer for drying and styling hair. But, there are also technical hair dryers that are used in construction. As a rule, they are very powerful, they are used for soldering, tinning, removing paint and varnish coatings, gluing plastics and much more.another. Although they have more power and other applications, these hair dryers are similar in design, their disassembly and repair are similar to hair dryers.
